Zaghwan

Also spelled �Zaghouan, � town, northeastern Tunisia. It lies on the fertile, northern slope of Mount Zaghwan at an elevation of 4,247 feet (1,295 m). It is built on the ancient Roman site of Zigus. Parts of a Roman aqueduct and canal network built in the 2nd century BC under the emperor Hadrian are still used to bring water from Zaghwan to Tunis. The importance of Zaghwan water is reflected in the location there of a Roman